APC by Schneider Electric SRT6KXLT-5KTF vs Vertiv GXT5LI-6000GVRT3UXLN: Specification Comparison
Both the APC Smart-UPS SRT6KXLT-5KTF and the Vertiv Liebert GXT5LI-6000GVRT3UXLN are 6000 VA double-conversion (online) UPS units targeting rack-mount enterprise and data-center environments. The APC unit ships with an integrated 208/240 V to 120 V step-down transformer, making it a fit for North American mixed-voltage loads. The Vertiv unit uses lithium-ion battery chemistry and accepts 200–240 V hardwired input with a configurable 200–240 V AC output, orienting it toward international or all-240 V deployments. This comparison evaluates power delivery and compatibility, battery and runtime technology, and management and environmental fit.
In This Guide
- How do the two units differ in power delivery, input range, and output voltage flexibility?
- What battery technology does each unit use, and what physical and environmental constraints apply?
- How do the two UPS units compare on management capabilities, protection features, and agency certifications?
- Which should you choose: the SRT6KXLT-5KTF or the GXT5LI-6000GVRT3UXLN?
- Side-by-Side Specs
- FAQ
How do the two units differ in power delivery, input range, and output voltage flexibility?
The APC SRT6KXLT-5KTF is rated at 6000 VA / 6000 W (1.0 power factor) and accepts input voltages from 100 V to 275 V across a wide 40–70 Hz frequency band. Critically, it includes an integrated step-down transformer that converts 208/240 V input to 120 V output, allowing it to power standard North American (NEMA 5-15/5-20) loads from a higher-voltage feed. Output voltage is selectable between 120 V and 240 V, and the unit achieves a crest factor of 3:1 with a pure sine waveform and an input THD of just 2%, indicating a highly linear load profile.
The Vertiv GXT5LI-6000GVRT3UXLN is also rated at 6000 VA / 6000 W (1.0 power factor). Its input is hardwired (L1-L2/N-G) and operates in the 200–240 V range only—no sub-200 V tolerance is specified. Output defaults to 230 V AC but is user-configurable from 200 V to 240 V with ±1% regulation. No step-down transformer is included. Input THD, crest factor, and surge energy rating are not provided in the supplied specifications.
What battery technology does each unit use, and what physical and environmental constraints apply?
The APC SRT6KXLT-5KTF specifications do not state battery chemistry. Physical dimensions and weight are not listed in the provided specs. Operating temperature range is not specified in the supplied data. The unit supports auto-restart and audible alarms, and APC's SRT platform is generally designed around hot-swap VRLA battery modules, but battery type is not confirmed by the provided spec sheet.
The Vertiv GXT5LI-6000GVRT3UXLN explicitly uses lithium-ion battery technology, as indicated in the product name and agency certifications (IEC 62619 1st Ed., the standard governing Li-ion batteries for stationary use). Physical footprint is fully specified: 5.25 in H × 16.9 in W × 35 in D, weight 99 lbs, fitting a 3U rack form factor. Operating temperature is rated 32°F to 104°F (0°C to 40°C) with a 10% derating noted at 50°C. Li-ion chemistry generally provides longer cycle life, faster recharge, and reduced weight per watt-hour versus VRLA, but battery type for the APC unit is absent from the provided specs, making a direct chemistry comparison one-sided.
How do the two UPS units compare on management capabilities, protection features, and agency certifications?
The APC SRT6KXLT-5KTF includes web-based management, Emergency Power Off (EPO), surge protection rated at 480 J, audible alarms, and auto-restart—all confirmed in the provided specifications. The unit is listed as supporting yes/no for each of these features, but specific network management card model, SNMP support, or software platform details are not included in the provided spec data.
The Vertiv GXT5LI-6000GVRT3UXLN carries a detailed agency approval list: IEC 62040-1:2008+A1 2013 (UPS safety), IEC 62619 (Li-ion battery safety), IEC 62040-2 (EMC), IEC 61000-3-2 and IEC 61000-3-12 (harmonic limits), CISPR 22 Class A, FCC Part 15 Class A, and UL 1778. This positions it as internationally certifiable. However, the provided specifications list no management interfaces (web, SNMP, EPO, or alarms), no surge joule rating, and no THD or crest-factor figures. Whether management or EPO features exist cannot be confirmed from the supplied data.
Which should you choose: the SRT6KXLT-5KTF or the GXT5LI-6000GVRT3UXLN?
Our take: The SRT6KXLT-5KTF is the stronger choice when the installation requires 120 V output from a 208/240 V feed, broad input voltage tolerance, or confirmed web-based management with EPO. Its integrated step-down transformer, 100–275 V input range, 2% input THD, 480 J surge rating, and verified web management make it the more fully specified option for mixed-voltage North American data-center and security-system racks. The GXT5LI-6000GVRT3UXLN holds a clear advantage in its confirmed lithium-ion chemistry—delivering longer battery service life and faster recharge—and in its comprehensive international agency certifications (IEC 62040-1/2, IEC 62619, UL 1778, FCC Part 15), making it better suited for 200–240 V-only environments or sites requiring multi-jurisdictional compliance. Buyers planning 120 V North American loads should favor the APC unit; those deploying in hardwired 230 V environments with a priority on Li-ion longevity and international certification should evaluate the Vertiv.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SRT6KXLT-5KTF | Vertiv GXT5LI-6000GVRT3UXLN |
|---|---|---|
| UPS Topology | Double-conversion (Online) | Not specified in provided specs |
| Power Rating (VA) | 6000 VA | 6000 VA |
| Power Rating (W) | 6000 W | 6000 W |
| Power Factor | 1.0 (6000 W / 6000 VA) | 1.0 (6000 W / 6000 VA) |
| Input Voltage Range | 100 V – 275 V | 200 V – 240 V |
| Input Frequency | 40 – 70 Hz | Not specified in provided specs |
| Input Connection | Not specified in provided specs | Hardwired (L1-L2/N-G) |
| Output Voltage | 120 V – 240 V (step-down transformer included) | 230 V AC default; 200–240 V user-configurable (±1%) |
| Waveform | Pure sine | Not specified in provided specs |
| Input THD | 2% | — |
| Crest Factor | 3:1 | — |
| Surge Energy Rating | 480 J | — |
| Battery Chemistry | Not specified in provided specs | Lithium-ion |
| Emergency Power Off (EPO) | Yes | — |
| Web-Based Management | Yes | — |
| Agency Certifications | — | IEC 62040-1, IEC 62619, IEC 62040-2, IEC 61000-3-2, IEC 61000-3-12, CISPR 22 Class A, FCC Part 15 Class A, UL 1778 |
| Noise Level | 55 dB | — |
| Operating Temperature | Not specified in provided specs | 32°F – 104°F (0°C – 40°C); 10% derate at 50°C |
| Dimensions (H × W × D) | — | 5.25 in × 16.9 in × 35 in |
| Weight | — | 99 lbs |
Frequently Asked Questions
Which should you choose: the SRT6KXLT-5KTF or the GXT5LI-6000GVRT3UXLN?
The SRT6KXLT-5KTF is the stronger choice when the installation requires 120 V output from a 208/240 V feed, broad input voltage tolerance, or confirmed web-based management with EPO. Its integrated step-down transformer, 100–275 V input range, 2% input THD, 480 J surge rating, and verified web management make it the more fully specified option for mixed-voltage North American data-center and security-system racks. The GXT5LI-6000GVRT3UXLN holds a clear advantage in its confirmed lithium-ion chemistry—delivering longer battery service life and faster recharge—and in its comprehensive international agency certifications (IEC 62040-1/2, IEC 62619, UL 1778, FCC Part 15), making it better suited for 200–240 V-only environments or sites requiring multi-jurisdictional compliance. Buyers planning 120 V North American loads should favor the APC unit; those deploying in hardwired 230 V environments with a priority on Li-ion longevity and international certification should evaluate the Vertiv.
Can either unit power standard 120 V North American equipment from a 208 V circuit?
Only the APC SRT6KXLT-5KTF is specified to do so: it includes an integrated 208/240 V to 120 V step-down transformer and supports output voltages from 120 V to 240 V. The Vertiv GXT5LI-6000GVRT3UXLN outputs 200–240 V AC only with no step-down transformer listed in the provided specifications, making it unsuitable for direct 120 V loads without additional external transformation.
Does the Vertiv GXT5LI-6000GVRT3UXLN use lithium-ion batteries, and is the APC unit's battery type specified?
Yes—the Vertiv unit explicitly uses lithium-ion chemistry, confirmed by its product name and IEC 62619 certification in the provided specs. The APC SRT6KXLT-5KTF's battery chemistry is not stated in the supplied specification data, so a direct battery-technology comparison cannot be made from the available information alone.
Which unit is better documented for EMC compliance and international certifications?
The Vertiv GXT5LI-6000GVRT3UXLN provides a detailed list of certifications in the supplied specs: IEC 62040-1, IEC 62040-2, IEC 61000-3-2, IEC 61000-3-12, CISPR 22 Class A, FCC Part 15 Class A, and UL 1778. The APC SRT6KXLT-5KTF's provided specifications do not list any agency certifications, so compliance claims for that unit cannot be verified from the data supplied.
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